The dump truck, owned by Mathis Construction and operated by James DiGuilio, 66, of Tuckerton, experienced a severe mechanical failure which caused it to overturn, said police Lt. Keith Germain. The truck was southbound when a broken suspension caused the truck’s load to shift abruptly, making it uncontrollable causing it to overturn, police said. No other vehicles were involved in the crash.

DiGuilo was treated at the scene by MONOC paramedics and Quality Medical Transport. He was airlifted by State Police helicopter to AtlantiCare Regional Medical Center in Atlantic City.

Route 539 was closed between Route 72 and Warren Grove Road for about four hours while the crash investigation was conducted and the Berkeley township hazardous materials response team supervised the cleanup of multiple gallons of diesel fuel and hydraulic fluid that was spilled as a result of the accident. Two heavy duty tow trucks were used to get the truck upright and removed from the scene.